Magnetic properties of Aurivillius phases Bim+1Fem−3Ti3O3m+3 with m = 5.5, 7, 8

Abstract The magnetic properties of the Aurivillius phases Bi m +1 Fe m −3 Ti 3 O 3 m +3 with the number of layers in the perovskite-like block m  = 5.5, 7, 8 were studied. These phases were found to possess magnetically ordered states at temperatures ranging from 175 to 255 K. Magnetic order of a weak ferromagnetic type was shown to exist in the alternating-layer phase with m  = 5.5, which has a transition temperature of about 175 K.